/*
 * Copyright 2023 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
#ifndef SkRadialGradient_DEFINED
#define SkRadialGradient_DEFINED

#include "include/core/SkFlattenable.h"
#include "include/core/SkPoint.h"
#include "include/core/SkScalar.h"
#include "src/shaders/gradients/SkGradientBaseShader.h"

class SkArenaAlloc;
class SkMatrix;
class SkRasterPipeline;
class SkReadBuffer;
class SkWriteBuffer;

class SkRadialGradient final : public SkGradientBaseShader {
public:
    SkRadialGradient(const SkPoint &center, SkScalar radius, const Descriptor &);

    GradientType asGradient(GradientInfo *info, SkMatrix *matrix) const override;

    const SkPoint &center() const
    {
        return fCenter;
    }
    SkScalar radius() const
    {
        return fRadius;
    }

protected:
    SkRadialGradient(SkReadBuffer &buffer);
    void flatten(SkWriteBuffer &buffer) const override;

    void appendGradientStages(SkArenaAlloc *alloc, SkRasterPipeline *tPipeline,
        SkRasterPipeline *postPipeline) const override;

private:
    friend void ::SkRegisterRadialGradientShaderFlattenable();
    SK_FLATTENABLE_HOOKS(SkRadialGradient)

    const SkPoint fCenter;
    const SkScalar fRadius;
};

#endif
